Trouble above 6 grand

The bike was pulling hard right until 6000RPM. Then it would bog and run like crap. The rev's would still climb, but very slowly. I thought the worst and assumed bad compression... luckily I was wrong.

The connector to the YPVS was rusted up and not making good contact. Also, for some unknown reason the battery was dead. After the connector was cleaned up the bike runs better than before.

BTW: Try riding your YPVS with the valve open and the servo disconnected... it really shows you why the system was put there. There is almost NO power under 5000RPM and then at around 6000 the bike comes alive